I've created a macro for the rich text editor, I have a width and height numeric parameter, I've set the values in the content node, I've double checked the field names are correct. However numeric parameter is returning "0" when it should be returning the values that have been entered into the macro parameter.

See my code below:

@inherits Umbraco.Cms.Web.Common.Macros.PartialViewMacroPage
@using Umbraco.Cms.Core.Models;
@{
    var frameUrl = Model.GetParameterValue<string>("frameUrl");
    var frameTitle = Model.GetParameterValue<string>("frameTitle");
    var frameHeight = Model.GetParameterValue<int>("frameHeight");
    var frameWidth = Model.GetParameterValue<int>("frameWidth");
}
<iframe class="iframe-macro" height="@frameHeight" width="@frameWidth" src="@frameUrl" title="@frameTitle"></iframe>

Can anyone help me understand how I can load the correct value that's been entered for the numeric parameter?

Thanks